FZUS61 KBUF 051641 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1241 PM EDT Tue May 5 2026 SLZ022-024-052115- Saint Lawrence River from Cape Vincent to Saint Regis 1241 PM EDT Tue May 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...Southwest winds 15 to 25 knots. Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms late. .TONIGHT...West winds 15 to 20 knots becoming southwest and diminishing to 10 knots or less after midnight. Showers in the evening, then showers likely after midnight. .WEDNESDAY...Southwest winds less than 10 knots becoming west. Showers likely. .WEDNESDAY NIGHT...Southwest winds less than 10 knots. A chance of rain showers in the evening. .THURSDAY...Southwest winds 10 knots or less becoming west. Partly to mostly cloudy. .FRIDAY...West winds 10 knots or less becoming southwest. A chance of rain showers. .SATURDAY...South winds 5 to 10 knots becoming southwest. Showers likely. Winds and waves higher in and near thunderstorms. $$